Re: Design question

> In fact, the start phase is not that difficult to handle.
> The problem is that, for now, when a connection between 2 hosts is
> broken, a message is sent (via TCP connection) to every other hosts
> connections to keep each hosts table uptodate and an automatic re-
> connection between these 2 hosts is tried triggered by a timer.

doesn't this introduce inefficiency? You'll get implementation complexity,
synchronization lag,
and ineffiecient network usage ( additional network traffic for table sync )
for now you have 60 connections on each host, connection is broken between 2
of them.
You have 60 machine tables, which can become desynchronized for considerable
timeout.

With server-based approach you will have 1 ( several ) machine tables, which
will be synchronized.
Consider also traffic through the network, when machines need to synchronize
machine table.

For failover you can introduce 2 or more servers: primary and secondary.
Hosts will know about the second one, but will work with the 1-st. If
primary server is down, they will automatically reconnect to the secod one.
Primary and secondary servers will have synchronized machine table.

--
Vadym Stetsyak aka Vadmyst
http://vadmyst.blogspot.com


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